package com.example2.demo;

import ch.qos.logback.classic.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.boot.CommandLineRunner;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.boot.context.event.ApplicationReadyEvent;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.context.ApplicationEvent;
import org.springframework.context.ApplicationListener;
import org.springframework.context.annotation.Bean;
import org.springframework.context.event.ApplicationEventMulticaster;
import org.springframework.context.support.AbstractApplicationContext;
import org.springframework.core.env.Environment;
import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor;
import org.springframework.stereotype.Component;

@EnableConfigurationProperties(CustomProperties.class)
public class Lab2AutoConfig {

    @Bean
    @ConditionalOnProperty(prefix = "test.auto", name = "test", havingValue = "true")
    CommandLineRunner createCustomCommandLineRunner(Environment env){
        return new CustomCommandLineRunner(env);
    }



    @Bean(AbstractApplicationContext.APPLICATION_EVENT_MULTICASTER_BEAN_NAME)
    ApplicationEventMulticaster CustomApplicationEventMulticaster(ThreadPoolTaskExecutor taskExecutor){
        org.springframework.context.event.SimpleApplicationEventMulticaster simpleApplicationEventMulticaster = new org.springframework.context.event.SimpleApplicationEventMulticaster();

        simpleApplicationEventMulticaster.setTaskExecutor(taskExecutor);
        return simpleApplicationEventMulticaster;
    }



    /**
     * 自定义事件
     */
    static class NoticeEvent extends ApplicationEvent{

        public static final Logger logger = (Logger) LoggerFactory.getLogger(NoticeEvent.class);

        /**
         * 存储信息
         */
        public final String message;

        public NoticeEvent(String message) {
            super(message);
            this.message = message;
            logger.info("添加事件成功!message: "+message);
        }
        public String getMessage(){
            return message;
        }
    }

    /**
     * 自定义事件监听器
     * 监听{@link NoticeEvent}事件
     */
    @Component
    static class NoticeListener implements ApplicationListener<NoticeEvent> {
        public static final Logger logger = (Logger) LoggerFactory.getLogger(NoticeListener.class);
        @Override
        public void onApplicationEvent(NoticeEvent noticeEvent) {
            logger.info("事件监听器获取到 NoticeEvent ，睡眠当前线程2s");
            try {
                Thread.sleep(2000);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            logger.info("NoticeEvent 的message属性是: "+noticeEvent.getMessage());
        }
    }

    /**
     * 自定义ApplicationReadyEvent的事件监听器
     *
     */
    @Component
    static class CustomApplicationReadyEvent implements ApplicationListener<ApplicationReadyEvent>{
        public static final Logger logger = (Logger) LoggerFactory.getLogger(NoticeListener.class);
        @Override
        public void onApplicationEvent(ApplicationReadyEvent applicationReadyEvent) {

            logger.info("CustomApplicationReadyEvent!!!!!!!!!!!");
        }
    }

}
